Overview
The MAX1238LEEE+ is a 12-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1236–MAX1239 series, known for their low power consumption and high-speed I²C-compatible serial interface. The MAX1238LEEE+ is designed for applications requiring multiple analog input channels and flexible configuration options.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 94.4 ksps |
| Number of Inputs | 12 (6 single-ended or differential) |
| Input Type | Differential, Single Ended |
| Data Interface | I²C (400 kHz Fast Mode, 1.7 MHz High-Speed Mode) |
| Configuration | S/H-ADC (1:1 Ratio) |
| Number of A/D Converters | 1 |
| Architecture | SAR (Successive Approximation Register) |
| Reference Type | External, Internal (4.096V internal reference) |
| Voltage - Supply, Analog | 4.5V to 5.5V |
| Voltage - Supply, Digital | 4.5V to 5.5V |
| Operating Temperature | -40°C to +85°C |
| Package / Case | 16-QSOP (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Key Features
- High-Speed I²C-Compatible Serial Interface with 400 kHz Fast Mode and 1.7 MHz High-Speed Mode
- Single-Supply Operation: 4.5V to 5.5V
- Low Power Consumption: 670µA at 94.4 ksps, less than 1µA in AutoShutdown mode
- Internal Track/Hold (T/H), Voltage Reference, and Clock
- Software Configurable for Unipolar or Bipolar, Single-Ended or Differential Operation
- Full-Scale Analog Input Range Determined by Internal Reference or External Reference Voltage (1V to VDD)
Applications
The MAX1238LEEE+ is suitable for a variety of applications, including:
- Data Acquisition Systems
- Industrial Automation
- Medical Devices
- Automotive Systems
- Consumer Electronics requiring multiple analog input channels and low power consumption
Q & A
- What is the resolution of the MAX1238LEEE+ ADC?
The MAX1238LEEE+ is a 12-bit analog-to-digital converter. - What is the maximum sampling rate of the MAX1238LEEE+?
The maximum sampling rate is 94.4 ksps. - How many analog input channels does the MAX1238LEEE+ have?
The device has 12 analog input channels, which can be configured as single-ended or differential inputs. - What is the supply voltage range for the MAX1238LEEE+?
The supply voltage range is 4.5V to 5.5V for both analog and digital supplies. - What is the operating temperature range of the MAX1238LEEE+?
The operating temperature range is -40°C to +85°C. - What type of data interface does the MAX1238LEEE+ use?
The device uses an I²C-compatible 2-wire serial interface. - Can the MAX1238LEEE+ be configured for different input modes?
Yes, it can be configured for unipolar or bipolar, single-ended or differential operation. - What is the power consumption of the MAX1238LEEE+ at maximum sampling rate?
The power consumption is typically 670µA at 94.4 ksps. - Does the MAX1238LEEE+ have an internal reference voltage?
Yes, it features a 4.096V internal reference voltage. - What is the package type of the MAX1238LEEE+?
The device is available in a 16-QSOP package.
